Brought you by The Pressure Positive Company, The Original Backnobber II tool is a deep muscle massage device that gives people the best way to manage simple muscular pain and tension both on their own and in conjunction with professional treatment and therapy. Made of a highly durable, polymer/fiberglass composite, molded in the shape of an "S," The Backnobber II device can be hooked over the shoulder or under the arm so that one of the two ends can be pressed into any of the muscles of the neck or shoulders, back, hips and hamstrings. This item with a natural shape and dimensions allows the user to apply as much pain-releasing pressure for as long as required to achieve its remarkable effects. It is designed to be used comfortably by both large and smaller persons and it is equipped with a locking mechanism that allows it to be taken apart for convenient storage or travel. It will easily fit into a normal size briefcase or overnight bag. It is ideal for travelers, sports enthusiasts and others on the go. Included with each Original Backnobber II is a fully illustrated 35 page User Guide complete with stretching and strengthening exercises. Color Green